/*
写在css文件中的类命名都已破折号分隔
*/
/*
page-layout-1 常规布局 main-body flex-grow:1;
*/
.page-layout-1{
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100vh;
}
.page-layout-1 .main-body{
  flex-grow: 1;
  overflow-y: scroll;
  display: flex;
}
.main-body > div{ /*main-body只可以有一个子元素div*/
  align-items: stretch;
  width: 100%;
}
/*垂直方向与固定元素一起时，自动扩展*/
.vertical-expansion{
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.vertical-expansion .expand-item{
  flex-grow: 1;
  overflow-y: scroll;
  display: flex;
}
.expand-item > div{
  align-items: stretch;
  width: 100%;
}
div{
  box-sizing: border-box;
}
/*遮罩层*/
.mask-layer{
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.8);
  z-index: 9999;
}

.a-style-1{
  text-decoration: none;
  color: inherit;
}
